Great product, reasonable price and fast shipping.

Good product. Corresponds to the description. Recommend.

Keep moving this in a circle or risk grinding unevenly. If you need to cut through some concrete. Sit in one place and this thing will go down! Seems to be wearing really well as well.

Excellent quality and durability for half the price

What a power grinding disc. Removes unwanted material fast and leaves a good working surface.

Fit good with my machines, work pretty good on terrazzo floor. Save much cost anyway.

I would like to leave the feedback and comment online, the grinding disc has long lasting and still going good. I purchased 12 units, seems enough for my next job in NY, I think

Grinds concrete blocks like a hot knife goingthrough butter…great tool at a good price!

fast shipping, I want to order more for next job.

The Discs fit my premaster machines well, so far they work perfectly.

Aggressive grinding, save the time. I will use more on another job.

There is a reason that the professionals use these.They work great!

Good quality

I used it to clean up rough concrete on my house foundation walls and on my driveway. Lots of life left.

Had to grind some concrete on a countertop I made. Worked really quickly and did what I needed it to do.

Amazing tool for DIY. I've used it with grinder at my Bathroom remodeling. It perfectly works on concrete.

I've been really impressed with this grinder attachment. Seeing that many different ones were for sale on the site, I went this one because of the sale looks very profession, This tool does the job and lasts long. I like it a lot.

This has helped me tremendously. I had an uneven interface at two slabs that were down before we even moved in here, With this grinding cup it roughs up and cleans the surface nicely, I'm pretty sure I can get away with using this instead of acid-etching as I finish prepping for paint.

I used this to grind down the nubs left over from the forms in my basements me it worked great. Would order again.

Chews through concrete and stone rapidly. I needed it to smooth down the raised edge when a slab was lifted by roots. Very little wear after 2 hours of constant running.